• 8-32 thread permits multiple installation positions and heights with 29mm Shrewd scopes • The Mini-Mag has 8 installation options while the Essential offers 2 installation options • Stainless steel up pin and plastic tubing protects the fiber optic and creates a fully enclosed system • Knurled brass nut locks the pin in place and requires no tools to install • Plastic tubing with fiber wraps around the scope body to collect ambient light and further illuminate the fiber within the pin • Works in conjunction with LP and ZBros light systems for additional control of pin brightness • Integrated pin comes with 1 blue, 1 green, and 1 orange stick of fiber in the size appropriate for the pin • Fits the Shrewd Mini-Mag and Essential scopes • Made in the USA